AHR 57.75SOH 92%Hx=88.49%odo 52592QC 290 L1/L2SOC 72.1%there are around 5 blue bars all other are red

how could it become better? and what does the change of blue bar to red mean?

red bars means the cell is actively balancing.

The change in your numbers probably reflects a few things

Your car was idle on the lot which will lower the numbers. Your driving the car raises the numbers to be closer to the real state of your pack. This is normal... Why? good question. Chalk it up to BMS weirdness.

My recommendation; start a log that you can put into a spreadsheet tracking miles driven daily, efficiency (miles per kwh) and LEAF Spy readings. Log it every day at the same time (I do mine first thing in the morning) then look at your numbers over time. You will see A LOT of daily fluctuations. But its the long term trend you want.

So "your" next question is "why do all that when I can log the stats once a month and save a ton of work"

Well you could but

1) its not a ton of work and if it is, you need to adjust your process.

2) your monthly reading could be an abnormally high or low one and you wouldn't have a clue as to which and you will be right back here asking why it happened.

3)EVness is cool so what better hobby is there than monitoring your LEAF!

Usually charge up to 75% +-2%, completing charge 1hr before leaving. Drains up to 23%+-5% everyday (depends on traffic). Drained to 15% twice. Always parked in garage/shade. Once/Twice a month 100% charge to rebalance.

I do not recommend it to you guys, but the method I am using could be worth to try at your own risk.

1) Warming up the battery by QC. 8 temp-bar works better than 6 temp-bar in my experience.2) Driving your Leaf with pressing and releasing the pedal repeatedly in B range. Hx will probably go up rapidly.3) Once SOC hits 50% or below, increase of Hx will likely stop, but decrease will likely not happen.

Some Japanese Leaf folks are keeping up Hx high using this method. Some 24kWh owners retain Hx = 100%+ at 30k+ miles.